id author title date pages extension mime words sentences flesch summary cache txt cord-016200-zfh20im0 Saxena, Jyoti Edible Vaccines 2013-10-22 .txt text/plain 7627 417 51 In 1998 a new era was opened in vaccine delivery when researchers supported by the National Institute of allergy and infectious diseases (NIAID) have shown for the first time that an edible vaccine can safely generate significant immune responses in people. Transgenic tobacco is successfully engineered for the production of edible vaccines against hepatitis B antigen using 's' gene of hepatitis B virus (HBV). Egyptian scientists have genetically engineered the maize plants to produce a protein known as HbsAg which elicits an immune response against the hepatitis B virus and could be used as a vaccine. It has been studied that genes are successfully expressed in experimental model plants and when given orally to animals, the extract of transgenic plant containing the antigen induced serum antibodies, thus can be used to produce the edible vaccine. ./cache/cord-016200-zfh20im0.txt ./txt/cord-016200-zfh20im0.txt